ssh problem

Hi Guys,

when I try to login to one of my sun server (sparc) from within an open putty session on another server I get this message:

bash-3.2$ ssh 10.0.0.10
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
1e:af:4e:f8:4f:ab:d5:f5:44:ac:fd:b6:c3:70:f4:32.
Please contact your system administrator.
Add correct host key in /export/home/admin/.ssh/known_hosts to get rid of this message.
Offending key in /export/home/admin/.ssh/known_hosts:1

RSA host key for 10.0.0.10 has changed and you have requested strict checking.
Host key verification failed.

What is the issue and how can I fix it.

Thanks Guys

Was that host reformatted/reinstalled? Its fingerprint changed, and ssh is crying foul.

Or if it hasn't been, something is playing foul, intercepting data between you and it.

If you know the host is okay, remove the line from known_hosts like it suggests and let it add a new line next time you try to login.